Error in database pageflow

Hi,

I have created a database pageflow using the wizard (and then custmised
it), and sometime, when I click on "New record", an error
occured "java.lang.IllegalArgumentException: Method not allowed with HTTP
POST data of type application/x-www-form-urlencoded", but I don't know
where it comes from.

Here is the stack trace:
PageFlowLog|2|03/07/07|15:22:59:827|java.lang.IllegalArgumentException :
Method not allowed with HTTP POST data of type application/x-www-form-
urlencoded
at com.novell.afw.portlet.impl.ActionRequestImpl.getP ortletInputStream
(ActionRequestImpl.java:96)
at com.sssw.wf.xf.core.EboRenderHelper.getInstanceDoc ument
(EboRenderHelper.java:535)
at com.sssw.wf.xf.core.EboRenderHelper.getInstanceDoc ument
(EboRenderHelper.java:517)
at com.sssw.wf.xf.activity.EboXPageNode.setOutboundDo cument
(EboXPageNode.java:409)
at com.sssw.wf.xf.activity.EboXPageNode.onRequest(Ebo XPageNode.java:172)
at com.sssw.wf.xf.core.EboProcess.onRequest(EboProces s.java:379)
at com.sssw.wf.xf.core.EboEngine.onRequest(EboEngine. java:163)
at com.sssw.wf.xf.manager.EboProcessManager.onRequest
(EboProcessManager.java:99)
at com.novell.afw.portal.portlet.pf.pageFlowRunner.pr ocessAction
(pageFlowRunner.java:128)
at com.novell.afw.portlet.core.EboPortletContainer.pr ocessOperation
(EboPortletContainer.java:646)
at com.novell.afw.portlet.core.EboPortletContainer.pr ocessOperation
(EboPortletContainer.java:549)
at
com.novell.afw.portlet.core.EboPortletContainer.pe rformBlockingInteraction
(EboPortletContainer.java:192)
at
com.novell.afw.portlet.consumer.core.EboPortletCon sumerContainer.processOpe
ration(EboPortletConsumerContainer.java:311)
at
com.novell.afw.portlet.consumer.core.EboPortletCon sumerContainer.performBlo
ckingInteraction(EboPortletConsumerContainer.java: 148)
at
com.novell.afw.portal.proxy.EboPortletContainerPro xy.performBlockingInterac
tion(EboPortletContainerProxy.java:197)
at
com.novell.afw.portal.aggregation.EboPortletProxyH elper.callPortletActionRe
quest(EboPortletProxyHelper.java:480)
at
com.novell.afw.portal.aggregation.EboPortalAggrega tionControllerImpl.checkA
ndHandleActionURLType(EboPortalAggregationControll erImpl.java:1987)
at
com.novell.afw.portal.aggregation.EboPortalAggrega tionControllerImpl.initia
teRendering(EboPortalAggregationControllerImpl.jav a:1261)
at
com.novell.afw.portal.aggregation.EboPortalAggrega tionControllerImpl.render
PortalResponse(EboPortalAggregationControllerImpl. java:531)
at
com.novell.afw.portal.aggregation.EboPortalAggrega tionServlet.handlePortalC
ontainerRequest(EboPortalAggregationServlet.java:7 61)
at
com.novell.afw.portal.aggregation.EboPortalAggrega tionServlet.callService
(EboPortalAggregationServlet.java:218)
at com.novell.afw.portal.aggregation.EboPortalAggrega tionServlet.doPost
(EboPortalAggregationServlet.java:95)
at javax.servlet.http.HttpServlet.service(HttpServlet .java:760)
at javax.servlet.http.HttpServlet.service(HttpServlet .java:853)
at com.sssw.srv.busobj.AgoFilterChain.doServlet(AgoFi lterChain.java:395)
at com.sssw.srv.busobj.AgoFilterChain.doFilter(AgoFil terChain.java:202)
at com.sssw.srv.busobj.AgoFilterChain.doFilter(AgoFil terChain.java:94)
at com.novell.afw.portal.xforms.EboXFormClientDetecti onFilter.doFilter
(EboXFormClientDetectionFilter.java:97)
at com.sssw.srv.busobj.AgoFilterChain.doFilter(AgoFil terChain.java:163)
at com.sssw.srv.resources.AgWarResource.service(AgWar Resource.java:633)
at com.sssw.srv.resources.AgWarURLResource.perform
(AgWarURLResource.java:113)
at com.sssw.srv.http.httpd.perform(httpd.java:5698)
at com.sssw.srv.http.Client.processRequest(Client.jav a:986)
at com.sssw.srv.http.Client.loop(Client.java:1353)
at com.sssw.srv.http.Client.runConnection(Client.java :1582)
at com.sssw.srv.http.Client.run(Client.java:1519)
at java.lang.Thread.run(Thread.java:534)

If someone could help, it would be great!

Thanks in advance and regards,

Cathy